EIFS repair

EIFS repair across San Diego County

EIFS, Exterior Insulation and Finish System, is not traditional stucco. It is a multi-layer synthetic system with a foam insulation board, a base coat with fiberglass mesh reinforcement, and a thin acrylic finish coat. Repairing it correctly requires different materials and techniques than Portland cement stucco work. We connect San Diego homeowners and commercial property owners with insured local crews that specialize in EIFS repair and understand the difference.

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EIFS repair crew patching delaminated synthetic stucco on a San Diego commercial building exterior

What's included in this service?

Probe and tap-test the EIFS to map delamination zones where the finish coat or base coat has separated from the foam board beneath
Assess moisture intrusion points at window and door perimeters, control joints, and penetrations where sealant has failed and water has entered the system
Remove damaged sections of EIFS down to the foam substrate or to the sheathing when water damage has compromised the foam
Reinstall foam board at the correct thickness, apply fiberglass mesh-reinforced base coat at the specified minimum thickness, and allow cure before the finish coat
Apply acrylic finish coat in the matching texture and color
Reseal all penetrations, control joints, and transitions with EIFS-compatible sealant at the specified application width and depth

When do you need this service?

The EIFS finish coat is cracked, peeling, or showing bubbling that indicates moisture has entered the system
The surface sounds hollow in areas when tapped, indicating delamination between the base coat and the foam
Impact damage from landscaping, sports, or construction has gouged or cracked the finish coat and base coat
Sealant at window and door perimeters has cracked, shrunk, or separated, leaving gaps where water can enter
Water staining is visible on interior walls adjacent to the EIFS exterior

What do homeowners ask about EIFS repair?

What is the difference between EIFS and traditional stucco?

Traditional Portland cement stucco is a rigid three-coat system applied over metal lath and building paper. It is hard, thick, and vapor-permeable. EIFS is a lightweight synthetic system built around a foam insulation board. The base coat is thin and reinforced with fiberglass mesh. The finish coat is a thin acrylic texture, not a cement product. The repair materials, techniques, and moisture management details are different for each system.

Why is EIFS prone to moisture problems?

Early EIFS installations from the 1980s and 1990s were barrier systems, meaning all water management depended on keeping water out at the surface. When sealants at window perimeters, control joints, and penetrations failed, water entered the system and had no way out. Moisture damage to the foam board, sheathing, and framing could be extensive before it became visible. Newer EIFS installations include drainage mat behind the system to allow any water that enters to drain out. Most EIFS repair calls in San Diego trace to failed perimeter sealant.

Can EIFS be converted to traditional stucco?

Yes, but it is not a simple overlay. EIFS must be removed completely before traditional stucco can be applied, since the foam substrate is not compatible with the Portland cement stucco system. The sheathing is then inspected for moisture damage, and the wall is rebuilt with lath and building paper before the new stucco system goes on. This is a larger scope than repair but is sometimes the right answer on older barrier EIFS systems with widespread moisture damage.

How do I verify a contractor can work on EIFS?

EIFS manufacturers have training and certification programs for installers, though California does not require a specific EIFS license. Any contractor doing EIFS work should hold a California C-35 Lathing and Plastering license or a C-2 Insulation and Acoustical license, depending on the scope. Verify any contractor license at cslb.ca.gov before signing a contract.